The deal last year that kept the Arizona Coyotes in Glendale could face a challenge after the city's mayor called for an investigation of a meeting last June between City Council members and a team attorney.

The meeting that took place several days before the council voted to approve a $225 million agreement with the NHL franchise could have violated the state's Open Meeting Law because key information was disclosed regarding the city's negotiating plans.

On Monday, Glendale Mayor Jerry Weiers asked the state attorney general to investigate the previously undisclosed meeting. Weiers voted against the deal in June 2013 to keep the Coyotes in Glendale.

If an investigation is opened and a violation of the state's Open Meeting Law is found, the team's deal with the city could be potentially voided. If that happens, the city council would have 30 days to ratify the Coyotes' deal in an open meeting.

"I think it's a clear violation," Weiers told The Arizona Republic. "That meeting is wrong on so many levels. It's like playing poker and showing your opponents all your cards."

STARS, ROUSSEL AGREE

The Dallas Stars reached agreement Tuesday on a four-year contract with forward Antoine Roussel, avoiding a scheduled salary arbitration hearing later in the day.

The team did not release financial terms of the deal, but the total package was worth $8 million, according to ESPN.com.

In 81 regular-season games last season, Roussel had 14 goals, 29 points and 209 penalty minutes. He was the only player in the NHL last season with more than 25 points and 150 penalty minutes. His penalty minutes were the third highest in the NHL.

Roussel added three assists and 27 penalty minutes in the Stars' six playoff games against the Anaheim Ducks.

"Since coming into the NHL, Antoine has been a very effective and hard player for opposing teams to compete against," Stars general manager Jim Nill said. "His skill combined with his competitive grit create energy for our club that impacts our whole lineup."

The 24-year-old originally signed with the Stars as an undrafted free agent. In 120 career NHL games, Roussel has 21 goals, 43 points and 294 penalty minutes.

DUCKS INK D-MAN VATANEN

The Anaheim Ducks solidified their defence with the signing of Sami Vatanen to a two-year contract on Tuesday.

The deal will see Vatanen paid $2.525 million over the course of the deal, according to the Los Angeles Times.

The 23-year-old native of Finland scored six goals while netting 21 points in 48 games with the Ducks last season.

Vatanen, who won a bronze medal at the Sochi Olympics with Finland, has posted eight goals and 23 points in 58 career games, all with the Ducks.

BRIEFLY

Forward Mats Zuccarello avoided an arbitration hearing with the New York Rangers by agreeing to a one-year deal worth $3.5 million ... Defenceman Nate Prosser signed a one-year, two-way contract with the St. Louis Blues ... The Vancouver Canucks signed forwards Darren Archibald and Brandon DeFazio.